恐龍卡第 0375 張，共 2 027 張

Cerebavis

名字的意思： “brain bird”1

吃：肉早期鳥類白堊紀晚期

Cerebavis was a bird that lived about 95 million years ago, during the time of the dinosaurs. It had a brain that looked surprisingly modern, almost like the brains of birds you see today. Its skull was found in Russia and scientists used special scans to study its brain shape.2

生存年代

100 到 94 百萬年前3

白堊紀晚期

化石發現地

Melovatka, Volgograd Region, Russia3 1

最高速度

時速約 27 公里（17 英里）

飛行, 估計值

牠生活在什麼時候？

三疊紀

侏羅紀

白堊紀

2 億 5200 萬年前20114566，小行星撞地球

牠有多快？

走路的人 時速約 5 公里 (3 mph)

騎腳踏車的小朋友 時速約 12 公里 (7 mph)

Cerebavis 時速約 27 公里 (17 mph)

一匹飛奔的馬 時速約 65 公里 (40 mph)

一隻獵豹 時速約 100 公里 (62 mph)

酷東西

趣味知識

Cerebavis is known from just one partial skull, which was first thought to be a fossilized brain.1

Scientists now know the specimen is actually a skull, not a brain, and they used CT scans to see the brain shape inside.2

Cerebavis had no temporal fenestrae, which are openings in the skull behind the eyes. This is a feature of ornithurine birds, not enantiornithines.2

The brain of Cerebavis was more like a modern bird's brain than the brain of Archaeopteryx, an early bird.2

Cerebavis did not have a wulst, a special part of the brain that helps modern birds with vision and touch. This feature had not yet evolved 93 million years ago.2

The skull bones of Cerebavis were very fused together, which is a sign of advanced flight adaptation, similar to modern flying birds.2

Cerebavis 的 AI 繪圖 — 這是電腦根據科學家目前的知識，用 AI 畫出 Cerebavis 可能的樣子。這只是猜測：真正的動物可能長得不一樣，也沒有人知道牠真正的顏色。

迷思破解王

迷思： Cerebavis was a dinosaur with a brain that looked very strange and different from any other animal.

真相： Scientists originally thought the brain was very unusual, but new CT scans show it was actually quite similar to the brains of modern birds.2

給恐龍專家

學名: Cerebavis
命名者: Kurochkin and Saveliev 20063
類群: 早期鳥類
科 / 演化支: Ornithurae3
分類: Theropoda > Avialae3
岩石的年代: 100 到 94 百萬年 (Cenomanian)3
岩層: Melovatka3
國家: 俄羅斯3
化石紀錄: The Paleobiology Database 收錄 1 筆3
發現: The only known fossil of Cerebavis was found in 1993 in the Melovatskaya Formation in Russia. It was named Cerebavis cenomanica by Evgeny Kurochkin and colleagues in 2006.1 2
仍有爭議: Scientists are not sure exactly how big Cerebavis was because only a skull has been found, and no body fossils.2